Press [Sauté] to pre-heat the cooker. When the word “Hot” appears on the display add oil to the cooking pot. Brown each half of the roast separately. Remove to a platter when browned.
Turn pressure cooker off and add water and liquid smoke to the cooking pot. Add
browned roasts and any accumulated juices to the pot. Sprinkle the salt over the top of the pork roasts.
Press [Pressure Cook] and then use the [+] button to set 90 minutes of pressure cooking time. When beep sounds, use a natural release to release pressure (approximately 20 minutes). When valve drops, carefully remove lid.
Remove the meat from the pressure cooker and shred with two forks, discarding excess fat as you shred. Add some of the juices from the pressure cooker to moisten the meat. (I used a fat separator to remove fat from the juices.)